Unit 5: Grammar - Subjective Questions

Simple tenses describe completed actions, regular habits, general truths, or states. They include the simple present, simple past, and simple future.

• Simple present: Subject + base verb. Example: She works in a bank. It expresses habits, routines, and facts.
• Simple past: Subject + past form of the verb. Example: She worked yesterday. It expresses a completed past action.
• Simple future: Subject + will + base verb. Example: She will work tomorrow. It expresses predictions, decisions, and future actions.

Continuous tenses describe actions in progress at a particular time.

• Present continuous: Subject + am/is/are + verb-ing. Example: She is working now.
• Past continuous: Subject + was/were + verb-ing. Example: She was working at 5 p.m.
• Future continuous: Subject + will be + verb-ing. Example: She will be working at noon tomorrow.

The simple aspect focuses on the action as a whole or as a fact, whereas the continuous aspect emphasizes duration or temporary progress.

Perfect tenses show that one action is completed before, or connected with, another time. They are formed with have, has, or had + past participle, or will have + past participle.

• I have finished the report.
• She had left before I arrived.
• They will have completed the project by Friday.

Non-perfect tenses do not specifically show a completed action in relation to another time. They may express facts, habits, events, or actions in progress.

• I finish the report every week.
• She left at noon.
• They are completing the project.

The perfect aspect establishes a relationship between two times, while the non-perfect aspect presents an event without emphasizing its prior completion. The perfect continuous form combines completion and duration, as in He has been studying for three hours.

A collocation is a natural combination of words that commonly occur together. Adverbs often collocate with particular verbs or adjectives, and adjectives also form conventional combinations with nouns or other words.

Adverb collocations:

• deeply concerned
• highly successful
• strongly recommend
• completely wrong

Adjective collocations:

• heavy rain
• strong argument
• major problem
• keen interest

The words in a collocation may be grammatically possible separately but unnatural when combined incorrectly. For example, heavy rain is natural, whereas strong rain is generally unusual. Correct collocations improve fluency, precision, and naturalness in communication. They also help learners avoid direct translations from their first language.

English verbs follow different patterns.

• Verb + to-infinitive: She decided to leave.
• Verb + -ing: He avoids driving at night.
• Verb + object + to-infinitive: The teacher encouraged us to participate.
• Verb + object + bare infinitive: They made him apologize.

Some verbs can be followed by either form with little change in meaning:

• I like to read.
• I like reading.

Other verbs change meaning according to the pattern:

• I remembered to lock the door means I did not forget the necessary action.
• I remember locking the door means I have a memory of the earlier action.
• She stopped to rest means she paused another activity in order to rest.
• She stopped resting means she no longer continued to rest.

Choosing the correct pattern depends on the verb and the intended meaning.

Modal auxiliary verbs are auxiliary verbs followed by the base form of another verb. Common modals include can, could, may, might, must, shall, should, will, and would.

• Ability: She can speak three languages.
• Past or tentative ability: He could swim when he was five.
• Permission: May I leave early?
• Possibility: It might rain tonight.
• Strong obligation or logical conclusion: You must submit the form. / He must be tired.
• Advice: You should revise the chapter.
• Prediction or willingness: They will help us.
• Polite request or hypothetical meaning: Would you open the window?

Modals do not normally take -s in the third person and are followed by the base verb: She can drive, not She cans drive. They express the speaker's attitude toward the action.

The omission of understood words is called ellipsis. It makes communication concise and avoids unnecessary repetition.

Examples include:

• I ordered tea, and my friend coffee. The verb ordered is omitted in the second clause.
• She can play the guitar, and he can too. The phrase play the guitar is understood after can.
• Some students passed, but others did not. The omitted words are pass or pass the examination.
• Would you like tea? — Yes, I would. The remaining words are sufficient because the full meaning is understood from context.

Words may also be omitted after auxiliary verbs, as in I have completed the work, and she has too. Ellipsis is acceptable when the omitted material is recoverable from the context. It should not be used when it creates ambiguity or makes the sentence difficult to understand.

A reduced infinitive is an infinitive in which the word to and, sometimes, the repeated verb are omitted because the meaning is already clear.

After a modal auxiliary, the infinitive is reduced to the base verb:

• She can drive.
• You must leave now.

In coordinated structures, the second to may be omitted:

• I want to read and write.
• He decided to stay and help.

After certain verbs, an entire repeated infinitive phrase can be represented by to alone:

• I asked her to attend the meeting, but she refused to.
• He promised to call, and he did not fail to.

The reduced form prevents repetition. However, it must be used only when the missing verb is obvious from the context and when the grammatical pattern allows it.

Negative inversion occurs when a negative or restrictive expression at the beginning of a sentence is followed by auxiliary-subject inversion.

• Ordinary: I had never seen such a performance.
• Inverted: Never had I seen such a performance.

Other examples include:

• Rarely does he arrive late.
• Not only did she win the prize, but she also broke the record.
• Under no circumstances should you disclose the password.

Emphatic structures give special prominence to a word or phrase.

• Cleft sentence: It was the manager who approved the proposal.
• What-clause: What I need is a quiet place to study.
• Do-emphasis: I do understand your concern.

Negative inversion is mainly used for formal emphasis, while cleft sentences and emphatic do highlight important information.

A verb-preposition combination consists of a verb followed by a particular preposition. The preposition is often fixed and may change the meaning of the verb.

Examples include:

• depend on: Success depends on preparation.
• listen to: Please listen to the instructions.
• belong to: This book belongs to me.
• approve of: The committee approved of the proposal.
• apply for: She applied for the position.
• insist on: He insisted on paying the bill.
• suffer from: Many people suffer from allergies.
• concentrate on: Students should concentrate on the main argument.

The preposition must be learned as part of the complete expression. A direct translation from another language may lead to errors, such as using discuss about instead of the correct form discuss the issue. Verb-preposition combinations are important for grammatical accuracy and natural expression.

A mixed conditional combines different time references in the condition and the result. It is used when a past situation has a present result or a present condition has a past result.

Past condition with present result:

• If I had studied medicine, I would be a doctor now.

The past perfect clause refers to an unreal past decision, while would be refers to its imagined present result.

Present condition with past result:

• If she were more organized, she would have completed the work yesterday.

The unreal present condition explains an unreal past result.

By contrast:

• First conditional: If it rains, we will stay home.
• Second conditional: If I had more time, I would travel.
• Third conditional: If they had left earlier, they would have caught the train.

Mixed conditionals are useful for expressing complex cause-and-effect relationships across time.

A relative clause modifies a noun and usually begins with a relative pronoun such as who, which, that, whose, or whom.

• The student who won the prize thanked her teacher.
• The book that you recommended is useful.

A relative clause can sometimes be reduced to a participle clause when the subject and the relationship between the clauses are clear.

• The student who is sitting near the door is my brother.
• The student sitting near the door is my brother.

An active relative clause may be reduced to a present participle:

• The people who live in this area support the project.
• The people living in this area support the project.

A passive relative clause may be reduced to a past participle:

• The documents that were signed yesterday are confidential.
• The documents signed yesterday are confidential.

The reduced form is concise, but it must not create a dangling or unclear modifier.

Discourse markers are words or phrases that organize ideas, show relationships, and indicate the speaker's attitude. They help listeners and readers follow the development of a message.

Their functions include:

• Adding information: Moreover, the plan is affordable.
• Contrasting: However, the evidence is limited.
• Giving examples: For instance, public transport reduces congestion.
• Showing results: Therefore, the policy was revised.
• Sequencing: First, collect the data. Next, analyze it.
• Changing topic: By the way, have you contacted the department?
• Showing hesitation or attitude: Well, I am not completely certain.
• Concluding: In conclusion, the proposal is practical.

Discourse markers may appear at the beginning of a sentence, between clauses, or in spoken pauses. Their use improves cohesion and makes communication more coherent.

Connectors and linking words join ideas and show the logical relationship between them. Some join words or clauses within a sentence, while others connect larger units of discourse.

• Addition: and, also, moreover, furthermore — The course is demanding; moreover, it is highly useful.
• Contrast: but, however, whereas, while — The method is simple, but it is effective.
• Cause: because, since, as, owing to — The match was cancelled because it rained.
• Result: therefore, consequently, so, as a result — The evidence was weak; therefore, the claim was rejected.
• Concession: although, even though, despite, in spite of — Although the task was difficult, the students completed it.

The grammatical structure must match the linking word. For example, although is followed by a clause, whereas despite is followed by a noun phrase or an -ing form: Despite the difficulty, they succeeded and Despite being tired, they continued.

The passive voice is formed with an appropriate form of be followed by the past participle. The object of the active sentence becomes the subject of the passive sentence.

• Active: The committee approved the proposal.
• Passive: The proposal was approved by the committee.

The agent may be omitted when it is unknown, obvious, or unimportant:

• The windows were cleaned yesterday.

Passive forms can be used in different tenses:

• The report is being prepared.
• The report has been completed.
• The report will be submitted tomorrow.

In reporting, two common passive patterns are:

• It is believed that the policy will succeed.
• The policy is believed to succeed.

Passive reporting is preferred in formal writing when the source is general, when the information is more important than the speaker, or when an impersonal tone is required.

English uses several forms to refer to the future, and each form communicates a different meaning.

• Will + base verb: Used for predictions, spontaneous decisions, promises, and offers. Example: I will help you with the assignment.
• Be going to + base verb: Used for prior intentions and predictions based on present evidence. Example: She is going to study abroad.
• Present continuous: Used for fixed personal arrangements. Example: We are meeting the supervisor at 10 a.m.
• Simple present: Used for timetables, schedules, and official programs. Example: The train leaves at 6:30.

The choice depends on whether the future event is a decision made at the moment of speaking, a prior plan, an arrangement, or a scheduled event. These forms should not be treated as completely interchangeable because they express different degrees of planning and evidence.

A restrictive relative clause provides essential information that identifies the noun. It is not separated by commas and may use that in many contexts.

• The students who submitted the form were admitted.

This means only the students who submitted the form were admitted.

A non-restrictive relative clause adds extra information about a noun that is already identified. It is separated by commas and normally uses who, which, or whose, but not that.

• My sister, who lives in Canada, is visiting us.

The clause gives additional information and does not identify which sister is meant.

In formal writing, punctuation is essential because it can change the meaning. Compare:

• The employees who work remotely attend the meeting online.
• The employees, who work remotely, attend the meeting online.

The first sentence restricts the group; the second presents remote work as information about all the employees.

A present participle ends in -ing, while a past participle commonly ends in -ed for regular verbs but has irregular forms such as written, taken, and broken.

Participles can function as parts of verb phrases:

• The students are preparing for the examination.
• The report was written by the researcher.

They can also function as adjectives:

• The lecture was interesting.
• The students were interested in the topic.
• The broken window was replaced.

An -ing adjective usually describes the person or thing that causes a feeling or reaction, while an -ed adjective describes the person or thing experiencing it. Thus, The lecture was boring means it caused boredom, whereas The students were bored means they experienced boredom. Correct distinction prevents confusion in meaning.

Tense locates an action in time, while aspect shows whether the action is complete, ongoing, or viewed in relation to another event. The perfect continuous combines a relationship with an earlier time and an emphasis on duration.

• Present perfect continuous: has/have been + verb-ing.

  • She has been working here since 2020.
  • It describes an action that began in the past and continues now, or has recently stopped with a present result.

• Past perfect continuous: had been + verb-ing.

  • They had been waiting for an hour when the bus arrived.
  • It describes an ongoing action that continued up to a point in the past.

• Future perfect continuous: will have been + verb-ing.

  • By June, he will have been teaching for ten years.
  • It emphasizes the duration of an action up to a future time.

Time expressions such as for, since, by, and when often clarify these relationships.

Modal expressions differ in the strength and source of obligation.

• Must: Expresses strong obligation imposed by the speaker or a logical conclusion. Example: You must wear a helmet.
• Have to: Expresses obligation arising from an external rule or circumstance. Example: Employees have to follow the safety policy.
• Should: Gives advice or expresses a moderate expectation. Example: You should check your references.
• Ought to: Has a meaning similar to should but is often more formal. Example: We ought to respect the agreement.
• Need not: Expresses absence of necessity. Example: You need not bring any equipment.
• Must not: Expresses prohibition. Example: Visitors must not enter this room.

The meanings of need not and must not are opposite. You need not attend means attendance is unnecessary, while You must not attend means attendance is forbidden.

A dangling participle occurs when a participle clause does not clearly modify the subject of the main clause. This can produce an illogical or humorous meaning.

Incorrect: Walking through the library, the books attracted my attention.

The sentence appears to say that the books were walking. The implied subject of walking must be the subject of the main clause.

Correct forms include:

• Walking through the library, I noticed that the books attracted my attention.
• As I walked through the library, the books attracted my attention.

Another example is:

• Incorrect: After completing the experiment, the results were recorded.
• Correct: After completing the experiment, the researchers recorded the results.

The corrected sentences provide a clear logical subject for the participle clause and avoid ambiguity.